Back عصب صدري طويل Arabic Nervus thoracicus longus Danish Nervus thoracicus longus German Nervio torácico largo Spanish Nerf thoracique long French Nervio torácico longo Galician Nervus thoracicus longus ID Nervo toracico lungo Italian 長胸神経 Japanese 긴가슴신경 Korean
| Long thoracic nerve | |
|---|---|
 Nerves of the left upper extremity. (Long thoracic labeled vertically at shoulder, to left of artery.) | |
 The right brachial plexus with its short branches, viewed from in front. (Long thoracic labeled at center, third from top.) | |
| Details | |
| From | Brachial plexus (C5-C7) |
| Innervates | Serratus anterior muscle |
| Identifiers | |
| Latin | nervus thoracicus longus |
| TA98 | A14.2.03.012 |
| TA2 | 6410 |
| FMA | 65275 |
| Anatomical terms of neuroanatomy | |
The long thoracic nerve (also: external respiratory nerve of Bell or posterior thoracic nerve) is a branch of the brachial plexus derived from cervical nerves C5-C7 that innervates the serratus anterior muscle.